Glue-spreading machine



(No Model.) 2 SheetsSheet 1.

E. F. COMPTON.

GLUE SPREADING MACHINE.

Patented Apr. 26, 1898.

INVENTOR 2 SheetsSheet 2 (No Model.)

E P. COMPTON. GLUE SPREADING MACHINE.

N m 8 9 0 w m m m a W M I W A d 6 b n 6 u Ya P NESSES all - UNITEDSTATES PATENT rmcn.

EDWARD F. COMPTON, OF PEORIA, ILLINOIS.

GLUE-SPREADING MACHINE.

SPECIFICATION forming part Of Letters Patent NO. 603,075, dated April26, 1898. Application filed April 23, 1897. serial 53 .5 (N9 el- To allwhom it may concern..-

Be it known that I, EDWARD F. COMPTON, acitizen of the United States,residing at Peoria, in the county of Peoria and State of Illinois, haveinvented certain new and useful Improvements in Glue-Spreading Machines;and I do hereby declare that the following is a full, clear, and exactdescription of the invention, which will enable others skilled in theart to which it appertains to make and use the same.-

This invention relates to gl tie-spreading machines, and has for itsobject to provide a more simple, convenient, and effective device forspreading glue upon both surfaces of a base preparatory to applyingveneering thereto.

Machines for this purpose have been in use heretofore; but they are notconvenient and do not accomplish the work intended without considerablemanipulation and unnecessary maneuvering. In my device either or bothsides of the work may be glued at the will of the operator and withoutstopping the machine, and any thickness of work maybe accommodated. Whenone side only of the work is to be glued, the mechanism for coating theopposite side maybe thrown out of position and out of gear at the onemovement. Also in my device the glue is fed by power to thedistributing-roll, which coats the upper sur face of the work, insteadof being allowed to flow by its own weight, a process uncertain in itsaction.

In veneering material for doors and the like it was necessary to passthe work through the machine twice, then pass the veneering through andafterward place it upon the work, and subject the whole to pressure. Inthe use of the device about to be described it is only necessary to passthe material through the machine once, gluing both sides simultaneously,then place the two sheets of veneering together and pass them through,and then glue them up, as before. This last operation takes only thefractional part of the time required to accomplish the same task by theformer method, and the time being of only a short duration the glue hasno time in which to become cold and thicken.

In the drawings herewith presented and which form a portion of thisapplication, Figure 1 is an elevation of one end of the machine. Fig. 2is a cross-section of the machine through the middle of its length,looking from the opposite end. Fig. 3 is a front elevation of themachine. Fig. 4 is a detail plan view in cross-section of the bearingportions of two of the rolls, showing construction of slides and otherparts. Fig. 5 is a detail view of a clutch and its parts, used inthrowing a portion of the operating mechanism out of gear. Fig. 6 is adetail of the clutch device. Fig. 7 is a detail plan view of a drivingportion of the machine. Fig. 8 is a perspective view in detail of alever arrangement for raising one of the rolls of the machine. Fig. 9 isa detail of a rubber buffer used under the bearings of the rolls.

In the several figures, A is the main frame, which is mounted on thetable B, having the legs 0.

D is a small supporting-frame set in front of the frame A, the use ofwhich will be presently explained. AhollowrollE is journaled in theframe A and revolves within a gluetank F, which is steam-jacketed forthe purpose of keeping the glue hot. The said roll E is also heated withsteam through a hollow shaft G. A covering of Brussels carpet or othersuitable material is provided for the said roll, with which to coat thework. A scraper II is placed in contact with the roll E, which keeps theglue evenly distributed and scrapes off any excess, which returns to thetank above which it is situated. Above this roll E is a pressure-roll I,which is mounted in bearings J, which slide smoothly within the slottedframe D. A coil-spring K rests upon each of the bearin gs J, and athread-bar L, by means of a hand-wheel, exerts a constant pressure uponthe said bearings, thus imparting a steady pressure to the roll E and onthe work in the machine. An adjustingscrew M, located in the frame Dbelow the bearings J, provides means for allowing the roll to descend toa fixed point, so that work of a certain thickness may only receive apressure sufficient to accomplish the proper result in the spreading ofthe glue. A detail of this adjustment is shown in Fig. 9, in which J isthe bearing, K the coil-spring, J a rubber buffer, and J a metal blockwhich receives the thrust of the screw M. A yoke N is secured at eitherend to the hearings J or simply encircles the shaft and is providedsuitable means, with which to raise and control the roll I when greatthicknesses of ma terial are to be entered. To the rear of this frame Dis the frame A before referred to. A hollow roll P is mounted inbearings Q, which slide in the said frame A, similarly to the bearings Jof the roll I. A larger hollow roll R revolves in contact with the rollP and is journaled in the same manner as said roll. These two rolls Pand R are held in fixed relation to each other by means of a plate 8,secured to the bearings Q. An adjustingscrew T serves the same purposewith reference to the rolls P and R as the screw M to the roll I. Aglue-receptacle U is hung beneath the roll R and carries a scraper V,which distributes the glue and, as in the above case, scrapes offanyexcess. A coilspring W also bears upon the plate S from above and actsin the same capacity as the spring K. A rollX is journaled in the frameA, below the roll P, and serves to support the work and is so situatedas to permit any glue which might adhere to it to run back into theglue-receptacle F.

The scrapers H and V are rollers and accomplish their work better thanwould a fixed scraper.

At times it is only necessary to glue one side of a piece of work, andthat this may be done without the use of the upper gluing portions Iprovide means for elevating the rolls P and R, and this is accomplishedby the use of a perpendicular frame Y, which moves in guides Z on theframework. 'The side arms are secured at their upper extremities to theplate S, and the lower portion of the frame is pivotally secured to theend of a lever at, having its fulcrum at I), while the power is appliedto the forward end in front and at one side of the machine. A catch 0 isalso provided, so that the said lever is depressed and swung under thecatch. This operation raises the rolls to a height sufficient to carrysaid rolls out of reach of the heaviest work. In Fig. 1 the means ofdriving the several rolls is shown, and consists in providing the shaftwhich carries the roll E with a driving-pulley d. Upon the same shaft isa sprocket-wheel e, driving a chain f, which runs over an idler g.

WVhen viewing the machine in the position shown in Fig. 1, the top ofthe roll E runs to the right, while the upper roll I revolves in acontrary direction, and that this may be accomplished so as to draw thework into the machine I provide the shaft carrying the roll I with agear-wheel h, which meshes with a similar wheel 71 on a stud j, securedto the bearing J, and this wheel, together with a sprocket-wheel k and apulley e, are mounted on a sleeve which turns on the said stud. Thesprocket-chain f engages the said sprocket 7c, imparts motion to thegear-wheels 'i and h, and drives the roll I in the reverse direction, sothat both rolls revolve in a direction to carry the work through themachine. The pulleyie drives, by means of a crossed belt, the roll P bythe pulley m, and a pulley 0 on the same shaft drives the roll R bymeans of a crossed belt 19 and pulley q. The rolls P and R are bothcovered with carpet or other suitable material which will carry theglue. The rolls E, P, R, and X are all hollow and kept hot by steamthrough the hollow shafts, as before set out. The steam enters throughsuitable piping and steam-joint connections, the upper rolls havingflexible-hose connections, the reason for which is obvious.

Means are provided for throwing the upper rolls out of gear when not inuse, and this is accomplished in the manner following: Upon one of thebearings carrying the roll P is pivotally secured the fork 7, whichstraddles the sleeve 8, having a shifting motion on the shaft of saidroll P. The said sleeve carries a number of pins t, which are designedto engage with a number of apertures u in the loose pulley m. A lug w islocated on the frame A somewhat above the pivoted fork r, and when thefoot-lever is depressed far enough to allow of its being thrown underthe catch 0 the fork r, asit meets the said lug, is thrown outwardly,thus disengaging the pins t from the said pulley. In Fig. 6 is across-section of the shaft on which the sleeve sis mounted, said shafthaving a slot y on diametrically opposite sides thereof, and projectionsz on the inside of the sleeve engage with said slots, and by this meansthe driving is accomplished. A spring a surrounds the shaft and exerts apressure upon the sleeve and keeps it in its seat in the pulley when notdisengaged by the lug 10.

In the operation of this device it is only necessary to start themachine, raise the roll I by the hand-lever 0, and start the workthrough. The glue being continually fed into the tanks F and U fromseparate boilingtanks and kept hot therein is carried to and depositedupon the work in an even coat.

When the upper rolls are not required, the foot-lever quickly lifts themup and out of the way, and this movement serves to throw them out ofgear by the means above set forth.

This machine may carry more than one spreading-roll above and below thework, if desired,and other changes may be made without departing fromthe spirit of my invention. For instance,the upper rolls may be fixedand the lower ones movable instead, as above described.

WVhat I claim as new, and desire to secure by Letters Patent, is

1. In a gluing-machine, the combination with a series of lowerstationary, powerdriven rolls, and the frames D and A, of an upper,power-driven yielding pressure -roll journaled in said frame D, springsK K for regulating pressure of same, a lever O pivoted on the said framefor controlling the said roll, the upper spreading and supplying rolls Pand B respectively, mounted in the frame A, the springs l/V W forcontrolling pressure of said rolls, a foot-power mechanism for raisingthe rolls from the work without the stopping of the machine, and meansfor automatically throwing same out of gear when in the raised positionsubstantially as set forth and described.

2. In a gluing-machine, the combination with a table B with its legs 0,of a glue-fount supported thereon, a steam-jacket surroundin g the same,the supporting-frameD mounted on said table, a lower power-drivengluing-roll journaled on the table, a rolling scraper H in contact withsaid roll, a yielding adjustable powerdriven pressure -roll above saidgluing-roll, a hand-lever O pivoted on said frame D for controlling saidpressure-roll, a supporting-frame A, a supportingroll X journaledtherein, a powendriven yielding gluing-roll P above said supportingroll,a power-driven glue-supplying roll having contact with saidglue-spreading roll, in fixed relation thereto, a steam-jacketedgluereceptacle located under said roll, a rolling scraper V j ournaledin said glue-receptacle in contact with the said supplying-roll, afootlever mechanism for raising the rolls P and R simultaneously, acatch 0 for holding the lever, springs W for regulating the pressure ofthe rolls upon the work and means for automatically throwing said rollsout of gear when raised out of position as set forth and described.

3. In a gluing-machine, the combination with the rolls P and R thevertical arms Y supporting the same, the lever a and catch 0, forcontrolling the said vertical arms, the frame A a pin or lug w, on thesaid frame of the automatic gear-releasing mechanism consisting of theloose pulley m on the shaft of the roll P and having the apertures u,the collar or sleeve 8 on said shaft, the pins t on said sleeve, thefork r straddling the said sleeve 8 and pivoted to the roll-bearing, andthe spring y surrounding the shaft, all substantially as and for thepurposes herein set forth and described.

In testimony whereof I aiiix my signature in presence of two witnesses.

EDWARD F. COMPTON.

Witnesses:

O. JOHNSON, J. H. BLUSCH.

